The Federal Government is pondering what to do with the plutonium pits, considered the weapons' deadliest part.

The Energy Department is also considering building a new installation for making the plutonium pits that are at the heart of nuclear bombs.

More modern plutonium pits are hollow.

It added that 15,000 to 16,000 plutonium "pits" from disassembled nuclear weapons would probably be stored at the Pantex plant.

The first shot was performed with an iron mockup of the plutonium pit.

After these incidents the spherical plutonium pit was referred to as the "Demon Core."

Mark 4 models used composite uranium and plutonium fissile pits.

The legislation also includes $22.8 million to study the environmental impact of manufacturing plutonium pits, which are core elements of nuclear bombs.

The hemispheres for the first plutonium pit (or core) were produced and delivered on 2 July 1945.

Detractors also argue against the un-justified capabilities to produce new plutonium pits, which constitute the core and active component of nuclear weapons.